import { TLV } from "@li0ard/tinytlv";
import { Interfaces } from "./index";
/**
 * Class for working with DG4 (Iris)
 * @hideconstructor
 * @experimental
*/
export declare class DG4 {
    /**
     * Extract int from Uint8Array
     * @hidden
     * @param data Uint8Array
     * @param start Offset
     * @param end Offset+length
     */
    private extractContent;
    /**
     * Read Biometric data block
     * @param tlv
     */
    readBDB(tlv: TLV): Interfaces.DecodedIris;
    /**
     * Get image of eye iris
     * @param data Data of EF.DG4 file
     */
    static load(data: string | Uint8Array): Interfaces.DecodedIris[];
}